Another exhaust question.
Thread Starter
11 Second Club
iTrader: (34)
Joined: Feb 2005
Posts: 3,158
Likes: 0
From: Ft. Wayne, Indiana
Another exhaust question. Yes another exhaust question.....Would a true dual setup be of more benefit than a Borla 3" full open catback ?? You guy's/gal's with the true duals...do you have them dumped or run up over the axles ?? Also, anyone running a true dual setup with the Spohn TA and saftey loop?? Any clearance issues??Any pics and comments would be appreciated. Thanks
Last edited by SS1875; Dec 7, 2005 at 02:41 PM.
On The Tree
Joined: Nov 2005
Posts: 110
Likes: 0
https://ls1tech.com/forums/generation-iii-external-engine/415227-true-dual-photos.html dumper or over the axle will sound good.. and yes you will benefit more with true duals go to ls1sounds.com to hear sound clips.
If your lowered like me, stick with the borla or else youll scrape the Duals off, otherwise Duals all the way. coming from a borla guy BTW
__________________
Featuring 6 different turbo kits for your F-body!
Check us out on Facebook at: www.facebook.com/HuronSpeed
Featuring 6 different turbo kits for your F-body!
Check us out on Facebook at: www.facebook.com/HuronSpeed
Thread Starter
11 Second Club
iTrader: (34)
Joined: Feb 2005
Posts: 3,158
Likes: 0
From: Ft. Wayne, Indiana
Originally Posted by Superman09
If your lowered like me, stick with the borla or else youll scrape the Duals off, otherwise Duals all the way. coming from a borla guy BTW
It depends on the Ypipe you have now, and if you have cats.
I went from a 3" catted (carsound) Ypipe and Corsa to Offroad 3" duals, over the axle AND an S2 Ported Throttle body.
Picked up ~10hp/10tq on the dyno.
Now how much of it can be attributed to the S2 and how much the duals, who knows ... but I know that atleast some of the gain can go to the S2. And therefore, IMO the the power gain from switching to duals from a Ypipe setup, is not justified by the price of the duals.
Now, the dumped duals flow better, and probably come closer to justify the price for duals ... I don't have a comparison on my car of with the tailpipes and when it was dumped unfortunately.
I'm going back to a custom catted Y w/ 2.5" piping here in a couple weeks because as mentioned, the 3" duals hang pretty low, although they did give me better ground clearance than my old mufflex 3" Ypipe that I had the carsound cats in.
I went from a 3" catted (carsound) Ypipe and Corsa to Offroad 3" duals, over the axle AND an S2 Ported Throttle body.
Picked up ~10hp/10tq on the dyno.
Now how much of it can be attributed to the S2 and how much the duals, who knows ... but I know that atleast some of the gain can go to the S2. And therefore, IMO the the power gain from switching to duals from a Ypipe setup, is not justified by the price of the duals.
Now, the dumped duals flow better, and probably come closer to justify the price for duals ... I don't have a comparison on my car of with the tailpipes and when it was dumped unfortunately.
I'm going back to a custom catted Y w/ 2.5" piping here in a couple weeks because as mentioned, the 3" duals hang pretty low, although they did give me better ground clearance than my old mufflex 3" Ypipe that I had the carsound cats in.
TECH Addict
Joined: Jun 2005
Posts: 2,660
Likes: 14
From: England
Originally Posted by SS1875
Yes another exhaust question.....Would a true dual setup be of more benefit than a Borla 3" full open catback ?? You guy's/gal's with the true duals...do you have them dumped or run up over the axles ?? Also, anyone running a true dual setup with the Spohn TA and saftey loop?? Any clearance issues??Any pics and comments would be appreciated. Thanks
Basically, exhausts are about flow rate and the exhaust pressure wave.
A good Y setup will match ANY dual setup until the size of the piping becomes a limitation with the Y pipe.
To exceed what a good Y setup can provide you'll need either FI or a good h/c setup. Essentially over 400rwhp.
Sound however will be different regardless of BHP output.
Serioulsy if you are happy with your setup now I'd spend the money on something more worth while.
Remember IF you setup flows well, you may actually loose power by swapping to duals, if the dual setup flows worse or detrimentally affects the exhaust pressure wave.
EDIT: Ok read your sig, looks like a nice setup.
Yes a 3" Y is porbably a restriction on your setup. But possibly not by much, as I have not yet found any data concerning bhp loss due to increased restriction. It may only be 2bhp but then again it may be 20bhp.
However, I'll satand by my word. To get any 'real' benefit you will need to design a good dual setup. just randomly slapping it together will probably not result in a good setup.
Last edited by 300bhp/ton; Dec 8, 2005 at 06:38 AM.
Trending Topics
Originally Posted by SS1875
Yes another exhaust question.....Would a true dual setup be of more benefit than a Borla 3" full open catback ?? You guy's/gal's with the true duals...do you have them dumped or run up over the axles ?? Also, anyone running a true dual setup with the Spohn TA and saftey loop?? Any clearance issues??Any pics and comments would be appreciated. Thanks
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin
Verdad Gallardo
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes
Verdad Gallardo
Awesome K5 Blazer Restomod Comes With C7 Corvette Power
Verdad Gallardo
10 Camaros You Should Never Buy
A member here has had a dual set up that ran on the pass side that would fit. I have seen a setup with a SLT loop that a shop in San Antone tx made that the X was were the drop bar is. Look on speed inc site I think its picured there.
A member here has had a dual set up that ran on the pass side that would fit. I have seen a setup with a SLP loop that a shop in San Antone tx made that the X was were the drop bar is. Look on speed inc site I think its picured there.